Sea fog

Sea smoke is formed when cold air flows over a warmer sea.
The cold air absorbs moisture, and the excess moisture, which cannot be absorbed, condenses immediately into fog. Simultaneously, the air is warmed by the sea and its dew point rises, dispersing the fog.
Then the warm air rises and is cooled by the air at higher levels, and fog is formed again.
Sea smoke does not persist for a long time. It forms, disperses and reforms constantly until the air adjacent to the sea is adequately warmed.